Topaz and Hexagonite Physical Properties

Topaz

Hexagonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.572.98-3.03

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven

1.6 Cleavage

[001] Perfect

[110] perfect; [010] distinct

1.7 Mohs Hardness

85-6

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Topaz and Hexagonite Chemical Formula

While comparing Topaz and Hexagonite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Topaz and Hexagonite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Topaz and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.